Porsche 718 cayman gt4
Reliability, running costs, and MOT data across 3 years from 1,543 real MOT tests.
Avg Pass Rate
97%
Total Tests
1,543
Best Year
2020 (98%)
Years Covered
3
About the Porsche 718 cayman gt4
The Porsche 718 cayman gt4 has been tested 1,543 times in 2026 MOT data across 3 model years (2019 to 2021), with an average pass rate of 97%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.
Best and Worst Years
The 2020 model is the most reliable with a 98% pass rate from 1,017 tests. The 2021 model has the lowest at 95%. With just a 3 point spread, the 718 cayman gt4 is consistently reliable regardless of year.
Reliability Trend
The PORSCHE 718 CAYMAN GT4 has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Mileage Across Years
The oldest model in our data (2019) averages 12,972 miles, while the newest (2021) averages 9,270 miles.
Compared to the Porsche brand average of 92%, the 718 cayman gt4 performs 5 points better, making it one of the more reliable options in the Porsche range.
Estimated Running Costs
Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.
Full 2021 detailsHow reliable is the Porsche 718 cayman gt4?
Porsche 718 cayman gt4 by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
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